.co-shell {
    --co-ink: #0b1b33;
    --co-muted: #617089;
    --co-blue: #0b3f9e;
    --co-blue-2: #165fd6;
    --co-line: #dfe6f0;
    --co-soft: #f4f7fb;
    --co-green: #087a55;
    --co-gold: #f2b705;
    --co-red: #b3261e;
    background: #f7f9fc;
    color: var(--co-ink);
    font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    padding-bottom: 4rem;
}

.co-container {
    width: min(1180px, calc(100% - 2rem));
    margin: 0 auto;
}

.co-topbar {
    background: #0a2b64;
    color: #dfeafe;
    font-size: .8rem;
    letter-spacing: .01em;
}

.co-topbar-inner {
    min-height: 38px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.co-topbar a { color: #fff; text-decoration: underline; text-underline-offset: 2px; }
.co-topbar strong { color: #ffe083; }

.co-main { padding-top: 1.4rem; }

.co-progress {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: .4rem;
    margin: 0 0 1.65rem;
    padding: .75rem;
    border: 1px solid var(--co-line);
    border-radius: 1rem;
    background: #fff;
    box-shadow: 0 6px 20px rgba(15, 39, 80, .04);
}

.co-step {
    display: flex;
    align-items: center;
    gap: .55rem;
    min-width: 0;
    padding: .4rem .35rem;
    color: #8a97a9;
    font-size: .79rem;
    font-weight: 600;
    line-height: 1.2;
}

.co-step-dot {
    flex: 0 0 auto;
    width: 1.65rem;
    height: 1.65rem;
    display: grid;
    place-items: center;
    border-radius: 50%;
    border: 1px solid #cbd6e5;
    background: #fff;
    font-size: .72rem;
    font-weight: 800;
}

.co-step.is-active { color: var(--co-ink); }
.co-step.is-active .co-step-dot { color: #fff; background: var(--co-blue); border-color: var(--co-blue); box-shadow: 0 0 0 3px #e4edfc; }
.co-step.is-done { color: var(--co-green); }
.co-step.is-done .co-step-dot { color: #fff; background: var(--co-green); border-color: var(--co-green); }

.co-alert {
    display: flex;
    align-items: flex-start;
    gap: .65rem;
    padding: .9rem 1rem;
    margin-bottom: 1rem;
    border: 1px solid #d4e3fa;
    border-radius: .75rem;
    background: #f1f7ff;
    color: #163665;
    font-size: .86rem;
    line-height: 1.45;
}
.co-alert.is-error { border-color: #f3c9c5; background: #fff5f4; color: #7c1f17; }
.co-alert.is-success { border-color: #bfe8d8; background: #f0fbf6; color: #075e43; }
.co-alert ul { margin: 0; padding-left: 1.1rem; }

.co-head { margin-bottom: 1.25rem; }
.co-eyebrow { margin: 0 0 .4rem; color: var(--co-blue); font-size: .72rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.co-title { margin: 0; font-family: 'Sora', 'Inter', sans-serif; font-size: clamp(1.65rem, 3.4vw, 2.5rem); line-height: 1.08; letter-spacing: -.035em; }
.co-lede { margin: .65rem 0 0; max-width: 48rem; color: var(--co-muted); font-size: .98rem; line-height: 1.65; }
.co-muted { color: var(--co-muted); }
.co-small { font-size: .8rem; color: var(--co-muted); line-height: 1.5; }

.co-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(300px, .85fr);
    gap: 1.25rem;
    align-items: start;
}
.co-layout.is-wide { grid-template-columns: minmax(0, 1fr); }

.co-card {
    border: 1px solid var(--co-line);
    border-radius: 1rem;
    background: #fff;
    box-shadow: 0 8px 28px rgba(15, 39, 80, .045);
}
.co-card-pad { padding: 1.25rem; }
.co-card + .co-card { margin-top: 1rem; }
.co-card-title { margin: 0 0 .3rem; font-family: 'Sora', 'Inter', sans-serif; font-size: 1.05rem; letter-spacing: -.02em; }
.co-card-sub { margin: 0 0 1rem; color: var(--co-muted); font-size: .84rem; line-height: 1.55; }

.co-aside { position: sticky; top: 1rem; }
.co-summary { overflow: hidden; }
.co-summary-head { padding: 1.1rem 1.2rem; background: linear-gradient(135deg, #0a2b64, #0b3f9e); color: #fff; }
.co-summary-head h2 { margin: 0; font-family: 'Sora', 'Inter', sans-serif; font-size: 1.02rem; }
.co-summary-head p { margin: .25rem 0 0; color: #c9daf7; font-size: .78rem; }
.co-summary-body { padding: 1rem 1.2rem 1.2rem; }
.co-summary-line { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; padding: .48rem 0; color: var(--co-muted); font-size: .84rem; line-height: 1.45; }
.co-summary-line strong { color: var(--co-ink); font-weight: 600; text-align: right; white-space: nowrap; }
.co-summary-line.is-discount strong { color: var(--co-green); }
.co-summary-rule { height: 1px; background: var(--co-line); margin: .55rem 0; }
.co-total { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; padding: .65rem 0 .3rem; }
.co-total-label { font-size: .8rem; font-weight: 700; color: var(--co-muted); text-transform: uppercase; letter-spacing: .08em; }
.co-total-value { font-family: 'Sora', 'Inter', sans-serif; font-size: 1.65rem; font-weight: 800; letter-spacing: -.04em; color: var(--co-blue); }
.co-summary .co-btn { margin-top: .85rem; }

.co-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .45rem;
    min-height: 2.8rem;
    padding: .7rem 1.05rem;
    border: 1px solid transparent;
    border-radius: .65rem;
    background: #fff;
    color: var(--co-ink);
    font-size: .86rem;
    font-weight: 700;
    line-height: 1.2;
    text-decoration: none;
    cursor: pointer;
    transition: transform .15s ease, background .15s ease, border-color .15s ease;
}
.co-btn:hover { transform: translateY(-1px); }
.co-btn-primary { background: var(--co-blue); color: #fff; box-shadow: 0 6px 16px rgba(11, 63, 158, .2); }
.co-btn-primary:hover { background: #082f79; }
.co-btn-ghost { border-color: var(--co-line); background: #fff; color: var(--co-ink); }
.co-btn-ghost:hover { border-color: #aebdd2; background: var(--co-soft); }
.co-btn-soft { background: #eaf1fd; color: var(--co-blue); }
.co-btn-danger { background: #fff4f2; color: #a52a1f; border-color: #f1cdc8; }
.co-btn-block { width: 100%; }
.co-btn:disabled { opacity: .55; cursor: not-allowed; transform: none; }
.co-btn-sm { min-height: 2.2rem; padding: .45rem .7rem; font-size: .76rem; }

.co-field { margin-bottom: .9rem; }
.co-label { display: block; margin-bottom: .35rem; color: #2b3b53; font-size: .79rem; font-weight: 700; }
.co-label .req { color: var(--co-red); }
.co-input, .co-select, .co-textarea {
    width: 100%;
    min-height: 2.75rem;
    padding: .65rem .8rem;
    border: 1px solid #cfd9e7;
    border-radius: .55rem;
    background: #fff;
    color: var(--co-ink);
    font-size: .88rem;
    outline: none;
    transition: border-color .15s ease, box-shadow .15s ease;
}
.co-input:focus, .co-select:focus, .co-textarea:focus { border-color: var(--co-blue-2); box-shadow: 0 0 0 3px #e4edfc; }
.co-input::placeholder { color: #9aa8bb; }
.co-textarea { min-height: 5rem; resize: vertical; }
.co-help { margin: .3rem 0 0; color: var(--co-muted); font-size: .74rem; line-height: 1.45; }
.co-error { margin: .3rem 0 0; color: var(--co-red); font-size: .75rem; font-weight: 600; }
.co-row { display: grid; grid-template-columns: 1fr 1fr; gap: .8rem; }
.co-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: .8rem; }
.co-check { display: flex; align-items: flex-start; gap: .55rem; color: #36465d; font-size: .82rem; line-height: 1.5; }
.co-check input { flex: 0 0 auto; margin-top: .2rem; accent-color: var(--co-blue); }
.co-check a { color: var(--co-blue); text-decoration: underline; text-underline-offset: 2px; }

.co-plan-hero {
    position: relative;
    overflow: hidden;
    padding: 1.55rem;
    border-radius: 1.1rem;
    background: linear-gradient(135deg, #092863 0%, #0b3f9e 62%, #1c6be0 100%);
    color: #fff;
    box-shadow: 0 16px 40px rgba(11, 63, 158, .2);
}
.co-plan-hero::after { content: ''; position: absolute; width: 270px; height: 270px; right: -80px; bottom: -130px; border-radius: 50%; background: rgba(255,255,255,.08); }
.co-plan-kicker { position: relative; z-index: 1; margin: 0 0 .35rem; color: #cfe0fb; font-size: .72rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.co-plan-name { position: relative; z-index: 1; margin: 0; font-family: 'Sora', 'Inter', sans-serif; font-size: clamp(1.75rem, 3vw, 2.35rem); letter-spacing: -.04em; }
.co-plan-desc { position: relative; z-index: 1; margin: .6rem 0 1rem; max-width: 38rem; color: #d8e6fb; font-size: .9rem; line-height: 1.6; }
.co-plan-price { position: relative; z-index: 1; display: flex; align-items: baseline; gap: .4rem; }
.co-plan-price strong { font-family: 'Sora', 'Inter', sans-serif; font-size: 2.2rem; letter-spacing: -.05em; }
.co-plan-price span { color: #cfe0fb; font-size: .82rem; }
.co-feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem .9rem; margin: 0; padding: 0; list-style: none; }
.co-feature-grid li { position: relative; padding-left: 1.2rem; color: #45566e; font-size: .82rem; line-height: 1.5; }
.co-feature-grid li::before { content: '✓'; position: absolute; left: 0; top: 0; color: var(--co-green); font-weight: 800; }

.co-cycles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .5rem; }
.co-cycle {
    position: relative;
    display: block;
    padding: .7rem .65rem;
    border: 1px solid var(--co-line);
    border-radius: .65rem;
    background: #fff;
    cursor: pointer;
    text-align: center;
}
.co-cycle input { position: absolute; opacity: 0; pointer-events: none; }
.co-cycle span { display: block; color: var(--co-muted); font-size: .73rem; font-weight: 600; }
.co-cycle strong { display: block; margin-top: .18rem; font-family: 'Sora', 'Inter', sans-serif; font-size: .95rem; }
.co-cycle:has(input:checked) { border-color: var(--co-blue); background: #f0f6ff; box-shadow: 0 0 0 2px #dce9ff; }
.co-cycle:has(input:checked) span { color: var(--co-blue); }

.co-domain-tabs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .4rem; margin-bottom: .8rem; }
.co-domain-tab {
    padding: .6rem .45rem;
    border: 1px solid var(--co-line);
    border-radius: .55rem;
    background: #fff;
    color: var(--co-muted);
    font-size: .73rem;
    font-weight: 700;
    line-height: 1.25;
    cursor: pointer;
    text-align: center;
}
.co-domain-tab.is-active { border-color: var(--co-blue); color: var(--co-blue); background: #f0f6ff; }
.co-domain-panel { display: none; }
.co-domain-panel.is-active { display: block; }
.co-domain-results { display: grid; gap: .35rem; margin-top: .55rem; }
.co-domain-result {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    width: 100%;
    padding: .6rem .7rem;
    border: 1px solid var(--co-line);
    border-radius: .55rem;
    background: #fff;
    color: var(--co-ink);
    font-size: .8rem;
    text-align: left;
    cursor: pointer;
}
.co-domain-result:hover { border-color: var(--co-blue-2); background: #f4f8ff; }
.co-domain-result strong { font-weight: 700; }
.co-domain-result span { flex: 0 0 auto; color: var(--co-green); font-weight: 700; font-size: .75rem; }
.co-domain-note { padding: .7rem .8rem; border: 1px solid #e3eaf4; border-radius: .55rem; background: var(--co-soft); color: var(--co-muted); font-size: .76rem; line-height: 1.5; }

.co-tld-list { margin-top: .8rem; border: 1px solid var(--co-line); border-radius: .65rem; overflow: hidden; }
.co-tld-row { display: flex; justify-content: space-between; gap: .6rem; padding: .45rem .65rem; font-size: .74rem; border-top: 1px solid #edf1f6; }
.co-tld-row:first-child { border-top: 0; }
.co-tld-row strong { font-weight: 700; }
.co-tld-row span { color: var(--co-muted); }

.co-tabs { display: flex; gap: .35rem; padding: .3rem; border-radius: .7rem; background: var(--co-soft); margin-bottom: 1rem; }
.co-tab { flex: 1; padding: .55rem .5rem; border: 0; border-radius: .5rem; background: transparent; color: var(--co-muted); font-size: .8rem; font-weight: 700; cursor: pointer; }
.co-tab.is-active { background: #fff; color: var(--co-blue); box-shadow: 0 2px 8px rgba(15,39,80,.08); }
.co-panel { display: none; }
.co-panel.is-active { display: block; }

.co-item { display: flex; justify-content: space-between; gap: 1rem; padding: .8rem 0; border-top: 1px solid #edf1f6; }
.co-item:first-child { border-top: 0; padding-top: 0; }
.co-item-name { margin: 0; font-size: .88rem; font-weight: 700; }
.co-item-meta { margin: .18rem 0 0; color: var(--co-muted); font-size: .76rem; line-height: 1.45; }
.co-item-price { flex: 0 0 auto; font-size: .86rem; font-weight: 700; }
.co-badge { display: inline-flex; align-items: center; padding: .18rem .45rem; border-radius: 999px; background: #e9f7f1; color: #087a55; font-size: .65rem; font-weight: 800; letter-spacing: .03em; text-transform: uppercase; }
.co-badge.is-blue { background: #eaf1fd; color: var(--co-blue); }
.co-badge.is-gold { background: #fff5d6; color: #8a6100; }

.co-actions { display: flex; align-items: center; justify-content: space-between; gap: .75rem; flex-wrap: wrap; margin-top: 1rem; }
.co-actions-end { justify-content: flex-end; }

.co-invoice-table { width: 100%; border-collapse: collapse; font-size: .82rem; }
.co-invoice-table th, .co-invoice-table td { padding: .55rem .4rem; border-bottom: 1px solid #edf1f6; text-align: left; vertical-align: top; }
.co-invoice-table th { color: var(--co-muted); font-size: .68rem; letter-spacing: .06em; text-transform: uppercase; }
.co-invoice-table td:last-child, .co-invoice-table th:last-child { text-align: right; white-space: nowrap; }

.co-payment-grid { display: grid; gap: .55rem; }
.co-pay { display: flex; align-items: flex-start; gap: .6rem; padding: .75rem .8rem; border: 1px solid var(--co-line); border-radius: .65rem; background: #fff; cursor: pointer; }
.co-pay:has(input:checked) { border-color: var(--co-blue); background: #f0f6ff; box-shadow: 0 0 0 2px #dce9ff; }
.co-pay input { margin-top: .2rem; accent-color: var(--co-blue); }
.co-pay strong { display: block; font-size: .84rem; }
.co-pay small { display: block; margin-top: .12rem; color: var(--co-muted); font-size: .73rem; line-height: 1.4; }

.co-legal { margin-top: .8rem; color: var(--co-muted); font-size: .74rem; line-height: 1.55; }
.co-legal a { color: var(--co-blue); text-decoration: underline; text-underline-offset: 2px; }

.co-bank { margin-top: 1rem; padding: 1rem; border: 1px solid #e3eaf4; border-radius: .75rem; background: var(--co-soft); }
.co-bank h3 { margin: 0 0 .55rem; font-size: .9rem; }
.co-bank-row { display: flex; justify-content: space-between; gap: 1rem; padding: .3rem 0; font-size: .8rem; border-top: 1px dashed #d7e1ee; }
.co-bank-row:first-of-type { border-top: 0; }
.co-bank-row span { color: var(--co-muted); }
.co-bank-row strong { text-align: right; word-break: break-word; }

.co-success-mark { width: 3.2rem; height: 3.2rem; display: grid; place-items: center; margin-bottom: .8rem; border-radius: 50%; background: #e7f8f0; color: var(--co-green); font-size: 1.4rem; font-weight: 800; }
.co-invoice-head { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.co-invoice-number { margin: .25rem 0 0; color: var(--co-muted); font-size: .8rem; }
.co-status { display: inline-flex; align-items: center; padding: .28rem .6rem; border-radius: 999px; background: #fff4d6; color: #805700; font-size: .7rem; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; }
.co-status.is-paid { background: #e7f8f0; color: #087a55; }

.co-auth-wrap { max-width: 34rem; margin: 0 auto; }
.co-auth-wrap .co-card { overflow: hidden; }
.co-auth-tabs { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1px solid var(--co-line); }
.co-auth-tab { padding: .8rem; border: 0; background: #fff; color: var(--co-muted); font-size: .84rem; font-weight: 700; cursor: pointer; }
.co-auth-tab.is-active { color: var(--co-blue); box-shadow: inset 0 -2px 0 var(--co-blue); }

.co-empty { padding: 2rem 1rem; text-align: center; }
.co-empty h2 { margin: 0 0 .4rem; font-family: 'Sora', 'Inter', sans-serif; font-size: 1.25rem; }
.co-empty p { margin: 0 auto .9rem; max-width: 30rem; color: var(--co-muted); font-size: .86rem; line-height: 1.55; }

.co-note { display: flex; gap: .5rem; padding: .65rem .7rem; border-radius: .55rem; background: #fff9e6; color: #72500b; font-size: .74rem; line-height: 1.45; }
.co-hr { height: 1px; background: var(--co-line); margin: 1rem 0; }

@media (max-width: 900px) {
    .co-layout { grid-template-columns: 1fr; }
    .co-aside { position: static; }
    .co-progress { grid-template-columns: 1fr 1fr; }
    .co-row-3 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 620px) {
    .co-container { width: min(100% - 1rem, 1180px); }
    .co-topbar-inner { min-height: 42px; font-size: .7rem; }
    .co-progress { padding: .5rem; gap: .2rem; }
    .co-step { font-size: .67rem; gap: .35rem; padding: .3rem .1rem; }
    .co-step-dot { width: 1.45rem; height: 1.45rem; font-size: .65rem; }
    .co-card-pad { padding: 1rem; }
    .co-row, .co-row-3 { grid-template-columns: 1fr; gap: 0; }
    .co-feature-grid { grid-template-columns: 1fr; }
    .co-cycles { grid-template-columns: 1fr; }
    .co-cycle { display: grid; grid-template-columns: 1fr auto; text-align: left; align-items: center; gap: .25rem; }
    .co-cycle strong { margin: 0; font-size: .86rem; }
    .co-domain-tabs { grid-template-columns: 1fr; }
    .co-domain-tab { text-align: left; }
    .co-actions { flex-direction: column-reverse; align-items: stretch; }
    .co-actions .co-btn { width: 100%; }
    .co-summary-line { font-size: .79rem; }
    .co-title { font-size: 1.55rem; }
    .co-invoice-head { display: block; }
}